.list-table{
    .free{
        color:#5fb41b
    }
    .price{
        color:#e85308
    }
}
.img-td{
    width: 120px;
    .teacher-img{
        width: 80px;
    }
}
.intro-td{
    width: 260px;
    padding: 10px;
    text-align: center;
}